CN219917139U - Power device assembly and air conditioner outdoor unit with same - Google Patents

Abstract

The utility model discloses a power device component and an air conditioner outdoor unit with the same, wherein the power device component comprises: the box body is provided with a containing cavity with one side open; a base plate which is covered on the open side of the accommodating cavity; the discrete devices are arranged on the substrate and positioned in the accommodating cavity; and the filler is arranged in the accommodating cavity and is filled between the discrete device and the peripheral wall of the accommodating cavity. According to the power device assembly, the box body and the filler are arranged, the discrete device is positioned in the accommodating cavity of the box body, and the filler is filled between the discrete device and the peripheral wall of the box body, so that the circuit structures of the discrete device and the substrate are effectively, reliably and well protected against water, corrosion and the like, and the power device assembly can stably and reliably operate in a severe environment, and the use requirement is better met.

Description

Power device assembly and air conditioner outdoor unit with same

Technical Field

The utility model relates to the technical field of semiconductors, in particular to a power device assembly and an air conditioner outdoor unit with the same.

Background

The power module is usually arranged in the air conditioner to realize the frequency conversion function of the air conditioner, and the power module is sold in standardized electronic products at present, but the power module is not easy to meet the requirement because the air conditioner has different requirements on the power module in actual production design. In the related art, the power device is generally coated with three-proofing paint to achieve the protection effect, but under some severe working conditions, such as dew, atmospheric corrosion, insect and ant situations, the power device is susceptible to corrosion failure, so that the operation failure of the air conditioner is caused.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model aims to provide the power device assembly which can effectively prevent corrosion invasion of dew, termites and the like under severe environments and ensure good and stable running conditions.

The utility model also provides an air conditioner outdoor unit with the power device assembly.

The power device assembly according to the first aspect of the present utility model comprises: the box body is provided with a containing cavity with one side open; a base plate which is covered on the open side of the accommodating cavity; the discrete devices are arranged on the substrate and positioned in the accommodating cavity; and the filler is arranged in the accommodating cavity and is filled between the discrete device and the peripheral wall of the accommodating cavity.

According to the power device assembly, the box body and the filler are arranged, the discrete device is positioned in the accommodating cavity of the box body, and the filler is filled between the discrete device and the peripheral wall of the box body, so that the circuit structures of the discrete device and the substrate are effectively, reliably and well protected against water, corrosion and the like, and the power device assembly can stably and reliably operate in a severe environment, and the use requirement is better met.

In addition, the power device assembly according to the utility model may also have the following additional technical features:

in some embodiments of the utility model, the filler is a potting adhesive or a silicone gel.

In some embodiments of the utility model, the filler is molded into the receiving cavity after filling.

In one embodiment of the utility model, the box body is provided with a filling hole communicated with the containing cavity.

In some embodiments of the present utility model, a plurality of support protrusions are provided on a peripheral wall of the open side of the case, the plurality of support protrusions are arranged at intervals along a circumferential direction of the case, and a peripheral edge of the substrate is supported by the plurality of support protrusions.

In one embodiment of the present utility model, a first fixing hole is formed on the supporting protrusion, and a plurality of second fixing holes are formed on the periphery of the substrate, the second fixing holes are in one-to-one correspondence with the first fixing holes and aligned in the axial direction of the first fixing holes.

In some embodiments of the utility model, one of the box body and the base plate is formed with a positioning column and the other is formed with a positioning hole, and the positioning column is matched in the positioning hole.

In some embodiments of the present utility model, the discrete device has a plurality of pins, and the case has a plurality of through holes formed therein in one-to-one correspondence with the pins, and the pins protrude from the case through the corresponding through holes.

In some embodiments of the present utility model, the discrete device is provided with a connection hole, and the filler has a connection post embedded in the connection hole.

In some embodiments of the utility model, the substrate is a metal substrate.

An outdoor unit of an air conditioner according to a second aspect of the present utility model includes the power device assembly according to the first aspect of the present utility model.

According to the air conditioner outdoor unit provided by the utility model, the power device assembly of the first aspect is arranged, the box body and the filler are arranged, the discrete device is positioned in the accommodating cavity of the box body, and the filler is filled between the discrete device and the peripheral wall of the box body, so that the circuit structures of the discrete device and the substrate can be effectively, reliably and well protected against water, corrosion and the like, and the power device assembly can stably and reliably operate in a relatively severe environment, and the use requirement can be better met.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

FIG. 1 is a schematic diagram of a power device assembly according to an embodiment of the utility model;

fig. 2 is an exploded view of the power device assembly shown in fig. 1;

fig. 3 is a schematic view of the substrate and discrete devices shown in fig. 2.

Reference numerals:

10. a substrate; 11. a second fixing hole; 12. positioning holes; 20. a discrete device; 21. a contact pin; 22. a connection hole; 30. a case body; 31. a supporting protrusion; 311. a first fixing hole; 32. positioning columns; 40. a filler;

100. a power device assembly.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

An air conditioner outdoor unit according to a second aspect of the present utility model will be briefly described with reference to fig. 1 to 3. An outdoor unit of an air conditioner according to an embodiment of the present utility model includes a power device assembly 100 according to an embodiment of the first aspect of the present utility model, and the power device assembly 100 is installed in a housing of the outdoor unit of the air conditioner.

A power device assembly 100 according to an embodiment of the first aspect of the present utility model is described below with reference to fig. 1-3.

As shown in fig. 2, a power device assembly 100 according to an embodiment of the first aspect of the present utility model includes: the package comprises a case 30, a substrate 10, a plurality of discrete devices 20, and a filler 40. Specifically, the case 30 has a receiving chamber with one side opened; the base plate 10 is arranged on the open side of the accommodating cavity in a covering manner; a plurality of discrete devices 20 are arranged on the substrate 10 and are positioned in the accommodating cavity; a filler 40 is provided in the receiving cavity and fills between the discrete device 20 and the peripheral wall of the receiving cavity. The housing cavity in the case 30 is open on one side to facilitate placement of the plurality of discrete devices 20 into the housing cavity from the open side, while facilitating assembly of the substrate 10 with the case 30 and the housing cavity. The discrete devices 20 may be provided with two, four, six, eight, etc., and the number of the discrete devices 20 may be set according to actual needs. For example, as shown in fig. 1, six discrete devices 20 are provided on the substrate 10, and the six discrete devices 20 are arranged in order on the substrate 10.

It will be appreciated that in some use scenarios, the substrate 10 may be provided with a circuit structure to meet the use requirements, and when the circuit structure is provided on the substrate 10, the discrete device 20 needs to be in communication with the circuit of the substrate 10, and thus, the substrate 10 may be provided with the circuit structure on the side connected to the discrete device 20 to facilitate circuit connection. Of course, the circuit structure may not be provided on the substrate 10.

According to the power device assembly 100 provided by the embodiment of the utility model, the box body 30 and the filler 40 are arranged, the discrete device 20 is arranged on the substrate 10 and is positioned in the accommodating cavity of the box body 30, the filler 40 is filled between the discrete device 20 and the peripheral wall of the accommodating cavity, and the filler 40 isolates the discrete device 20 and the circuit structure on the substrate 10 from the outside, so that the power device formed by the substrate 10 and the discrete device 20 is effectively and reliably protected, and furthermore, the box body 30 can effectively block and isolate generated dew, atmospheric corrosion, insect and ant residue corrosion and the like from the filler 40, so that the discrete device 20 and the substrate 10 are further protected, and the power device assembly 100 can stably and reliably operate in a severe environment.

Of course, in practical application, the structures of the box body 30 and the filler 40 can be additionally arranged on the existing power device for protection, so that the protection effect of the existing power device is improved.

According to the power device assembly 100 of the embodiment of the utility model, the box body 30 and the filler 40 are arranged, the discrete device 20 is positioned in the accommodating cavity of the box body 30, and the filler 40 is filled between the discrete device 20 and the peripheral wall of the box body 30, so that the circuit structures of the discrete device 20 and the substrate 10 can be effectively, reliably and well protected from water, corrosion and the like, and the power device assembly 100 can stably and reliably operate in a relatively severe environment, and better meets the use requirements.

In some embodiments of the present utility model, the filler 40 may be a potting or silicone gel. Therefore, the filler 40 is set as a pouring sealant or a silicone gel piece, and the pouring sealant and the silicone gel piece have good heat conduction and insulation effects, so that after the power device assembly 100 is assembled, heat generated by the discrete device 20 can be well conducted out of the filler 40, and meanwhile, the filler 40 plays a good insulation protection role on the discrete device 20 and the circuit structure on the substrate 10, so that the power device assembly 100 can operate more stably and reliably. Preferably, the filler 40 is a silicone gel member.

In some embodiments of the present utility model, as shown with reference to fig. 2, the filler 40 may be molded into the receiving cavity after filling. Filling means filling a flowable material into a container. When the power device assembly 100 of the embodiment is assembled, the positions of the substrate 10, the discrete device 20 and the box body 30 are arranged and fixed, and then the silicone gel piece is poured into the accommodating cavity, so that the silicone gel piece can be reliably and stably filled between the discrete device 20 and the peripheral wall of the box body 30, and after the silicone gel piece is solidified and formed, the silicone gel piece can well play a role in isolating and protecting the discrete device 20 and the substrate 10.

Meanwhile, the silicone gel piece can adapt to the protection requirements of the discrete devices 20 when the discrete devices are arranged on the substrate 10 in different ways, so that the protection of the power device is more convenient, flexible and effective, and the assembly of the power device assembly 100 is more convenient. Of course, the silicone gel member may be pre-filled in the accommodating cavity of the box body 30, then the substrate 10 and the discrete device 20 are mounted on the open side of the box body 30, and the discrete device 20 is located in the accommodating cavity, so that the silicone gel member is fully contacted with the discrete device 20 and the substrate 10 in the extrusion process, and finally the silicone gel member is cured and formed to complete the assembly of the power device assembly 100.

In one embodiment of the present utility model, referring to fig. 2, a filling hole communicating with the receiving chamber may be formed in the case 30. This facilitates filling of the filler 40 into the receiving cavity during assembly of the power device assembly 100. Further, the filling hole is opened at the bottom of the accommodating chamber (refer to the bottom of the case in the up-down direction shown in fig. 2).

In one embodiment of the present utility model, the case 30 may be a PPS (Polyphenylene sulfide polyphenylene sulfide) material or a PBT (Polybutylene terephthalate polytrimethylene terephthalate) and fiberglass mixed material. Therefore, the box body 30 has good high-temperature resistance and corrosion resistance, so that the box body 30 can better play a role in protection. Preferably, the case 30 is a polyphenylene sulfide material.

In some embodiments of the present utility model, as shown in fig. 2, a plurality of support protrusions 31 may be provided on a circumferential wall of an open side of the case 30, the plurality of support protrusions 31 being arranged at intervals along a circumferential direction of the case 30, and the circumferential edge of the substrate 10 being supported by the plurality of support protrusions 31. Therefore, when the power component is assembled, the substrate 10 can be arranged and positioned on the plurality of supporting protrusions 31 of the box body 30, and the plurality of supporting protrusions 31 are arranged, so that the substrate 10 is more convenient to mount and position on the box body 30, and the power component 100 is easier to assemble. For example, the support protrusions 31 may be provided with three, four, five, etc., and the number of the support protrusions 31 may be set as needed. Preferably, the support protrusions 31 are provided in four, and the four support protrusions 31 are arranged at intervals along the circumferential direction of the case 30.

In one embodiment of the present utility model, as shown in fig. 2, the supporting protrusion 31 may be formed with a first fixing hole 311, and the circumference of the substrate 10 is provided with a plurality of second fixing holes 11, the plurality of second fixing holes 11 being in one-to-one correspondence with the plurality of first fixing holes 311 and aligned in an axial direction (up-down direction as shown in fig. 2) of the first fixing holes 311. Thus, the first fixing hole 311 and the second fixing hole 11 are provided, so that the power device is conveniently fixed in the air conditioner outdoor unit. When the power device assembly 100 is installed in the air conditioner outdoor unit, an assembler can use the fastening piece to penetrate through the first fixing holes 311 and the second fixing holes 11 to connect and fix the power device assembly in the air conditioner outdoor unit, and a plurality of first fixing holes 311 and second fixing holes 11 are arranged, so that the power device can be firmly and conveniently fixed in the air conditioner outdoor unit, and the power device assembly is simple in structure and convenient to install. For example, as shown in fig. 2, four first fixing holes 311 are formed in the supporting protrusion 31, and four second fixing holes 11 are correspondingly formed in the substrate 10.

In some embodiments of the present utility model, referring to fig. 1 and 2, one of the case 30 and the substrate 10 may be formed with a positioning post 32 and the other is formed with a positioning hole 12, and the positioning post 32 is fitted into the positioning hole 12. Therefore, when the positioning column 32 is arranged on the box body 30, the positioning hole 12 is correspondingly arranged on the substrate 10, when the positioning hole 12 is arranged on the box body 30, the positioning column 32 is correspondingly arranged on the substrate 10, and the positioning column 32 and the positioning hole 12 structure are arranged on the box body 30 and the substrate 10, so that the assembly and the positioning of the substrate 10 and the box body 30 are facilitated, and the assembly of the power device assembly 100 is more convenient. Preferably, the box body 30 is provided with a positioning column 32, and the substrate 10 is correspondingly provided with a positioning hole 12. Further, two positioning columns 32 are provided, the two positioning columns 32 are located at two opposite sides of the box body 30, and two positioning holes 12 are correspondingly formed in the substrate 10.

In some embodiments of the present utility model, referring to fig. 1 and 2, the discrete device 20 may have a plurality of pins 21, and the case 30 may have a plurality of through holes formed therein in one-to-one correspondence with the pins 21, and the pins 21 extend out of the case 30 through the corresponding through holes. Therefore, the plurality of through holes corresponding to the pins 21 one by one are formed in the box body 30, so that the pins 21 can conveniently penetrate out of the box body 30 to perform functions of data transmission, power supply and the like, and the power device can be conveniently assembled, meanwhile, the plurality of through holes corresponding to the pins 21 one by one can avoid larger gaps, so that external rainwater, condensation and the like can be prevented from penetrating into the box body 30 from the pins 21, and the protection effect of the box body 30 and the filler 40 on the power device is better. For example, as shown in fig. 1, the discrete device 20 has three pins 21.

In some embodiments of the present utility model, as shown in fig. 1, the discrete device 20 may be provided with a connection hole 22, and the filler 40 has a connection post embedded in the connection hole 22. This can make the contact of the filler 40 with the discrete device 20 more secure, thereby further improving the protective effect of the filler 40 on the discrete device 20.

In some embodiments of the present utility model, the substrate 10 may be a metal substrate. Thus, the substrate 10 is a metal substrate, and has a stable structure and good heat dissipation, so that the power device assembly 100 is more stable during operation.

An air conditioner outdoor unit according to an embodiment of the second aspect of the present utility model will be described with reference to fig. 1 to 3.

As shown in fig. 1 to 3, an outdoor unit of an air conditioner according to an embodiment of the present utility model includes a power device assembly 100 according to an embodiment of a first aspect of the present utility model.

Other configurations and operations of the outdoor unit of the air conditioner according to the embodiment of the present utility model are known to those skilled in the art, and will not be described in detail herein.

According to the outdoor unit of the air conditioner in the embodiment of the utility model, by arranging the power device assembly 100 of the first embodiment, the box body 30 and the filler 40, the discrete device 20 is positioned in the accommodating cavity of the box body 30, and the filler 40 is filled between the discrete device 20 and the peripheral wall of the box body 30, so that the circuit structures of the discrete device 20 and the substrate 10 can obtain effective, reliable and good waterproof, anti-corrosion and other protection effects, and the power device assembly 100 can stably and reliably operate in a relatively severe environment, thereby better meeting the use requirements.

An outdoor unit of an air conditioner according to an embodiment of the present utility model will be described with reference to fig. 1 to 3.

As shown in fig. 1 to 3, the air conditioner outdoor unit includes a power device assembly 100, and the power device assembly 100 is disposed in the air conditioner outdoor unit to implement a frequency conversion function of an air conditioner.

The power device assembly 100 includes a substrate 10, discrete devices 20, a case 30, and a filler 40. The base plate 10 is the metal substrate, and discrete device 20 is equipped with six, and six discrete device 20 are located on the metal substrate side by side, are equipped with connecting hole 22 and three contact pin 21 on the discrete device 20, and box body 30 has and holds the chamber and hold the open side of chamber intercommunication, and box body 30 is equipped with four supporting projections 31, is equipped with first fixed orifices 311 on every supporting projection 31, and four supporting projections 31 are arranged along the circumference interval of box body 30, and the metal substrate corresponds to be equipped with second fixed orifices 11 and supports on supporting projection 31, and discrete device 20 is located and holds the intracavity. The box body 30 is provided with two positioning columns 32, the two positioning columns 32 are positioned at two opposite sides of the box body 30, and positioning holes 12 are correspondingly formed in the metal substrate; the bottom of the accommodating cavity of the box body 30 is also provided with filling holes and perforations corresponding to the pins 21 one by one. The filler 40 is a silicone gel member.

When the power device assembly 100 is assembled, the positions of the substrate 10, the discrete device 20 and the box body 30 are arranged and fixed, the insertion body is arranged in the through hole in a penetrating mode, the metal substrate is supported on the supporting protrusion 31, the positioning column 32 is arranged in the positioning hole 12 in a penetrating mode, then the silica gel piece is poured into the accommodating cavity from the filling hole, and after the silica gel piece is solidified and molded, the assembly of the power device assembly 100 can be completed.

According to the power device assembly 100 of the embodiment of the utility model, the box body 30 and the filler 40 are arranged, the discrete device 20 is positioned in the accommodating cavity of the box body 30, and the filler 40 is filled between the discrete device 20 and the peripheral wall of the box body 30, so that the circuit structures of the discrete device 20 and the substrate 10 can be effectively, reliably and well protected from water, corrosion and the like, and the power device assembly 100 can stably and reliably operate in a relatively severe environment, and better meets the use requirements.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (11)

1. A power device assembly, comprising:

the box body is provided with a containing cavity with one side open;

a base plate which is covered on the open side of the accommodating cavity;

the discrete devices are arranged on the substrate and positioned in the accommodating cavity;

and the filler is arranged in the accommodating cavity and is filled between the discrete device and the peripheral wall of the accommodating cavity.

2. The power device assembly of claim 1, wherein the filler is a potting compound or a silicone gel.

3. The power device assembly of claim 1, wherein the filler is molded into the receiving cavity after filling.

4. A power device assembly according to claim 3, wherein the case has a filling hole formed therein in communication with the receiving cavity.

5. The power device assembly according to claim 1, wherein a plurality of support protrusions are provided on a peripheral wall of the open side of the case, the plurality of support protrusions being arranged at intervals along a circumferential direction of the case, and the peripheral edge of the substrate being supported by the plurality of support protrusions.

6. The power device assembly of claim 5, wherein the support protrusion has a first fixing hole formed thereon, and a plurality of second fixing holes are formed at a peripheral edge of the substrate, the plurality of second fixing holes being aligned with the plurality of first fixing holes in one-to-one correspondence and in an axial direction of the first fixing holes.

7. The power device assembly of claim 1, wherein one of the case and the substrate is formed with a positioning post and the other is formed with a positioning hole, the positioning post fitting into the positioning hole.

8. The power device assembly of claim 1, wherein the discrete device has a plurality of pins, the case having a plurality of perforations formed therein in one-to-one correspondence with the pins, the pins extending out of the case through the corresponding perforations.

9. The power device assembly of claim 1, wherein the discrete device has a connection hole therein, and the filler has a connection post embedded in the connection hole.

10. The power device assembly of claim 1, wherein the substrate is a metal substrate.

11. An outdoor unit of an air conditioner, comprising the power device assembly according to any one of claims 1 to 10.